<template>
    <div class="login_container">
       <div class="login_box">
           <!-- 头像区域 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录表单区域 -->
            <el-form ref="loginFormRef" label-width="0px" class="login_form" :model='loginForm' :rules='formDataRules'> 
                <!-- 用户名 -->
                <el-form-item prop='username'>
                <el-input  prefix-icon="iconfont icon-user" v-model="loginForm.username"> </el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop='password'>
                <el-input  prefix-icon="iconfont icon-3702mima"  type="password" v-model="loginForm.password"></el-input>
                </el-form-item>
                <!-- 按钮区域 -->
                <el-form-item class="btns">
                <el-button type="primary" @click="login">登录</el-button>
                <el-button type="info" @click="resetForm" >重置</el-button>
                </el-form-item>
            </el-form>
       </div>
    </div>
</template>
<script>
export default {
    data() {
        return {
        loginForm:{
            username:'admin',
            password:'123456'
        },
        formDataRules:{
            username:[
                {required:true,message:'请输入用户名',trigger:'blur'},
                {min:3,max:8,message:'用户名长度在3-8之间',trigger:'blur'}
            ],
            password:[
                {required:true,message:'请输入密码',trigger:'blur'},
                {min:6,max:15,message:'密码长度在6-15之间',trigger:'blur'}
            ]
        },
        }
    },
    methods:{
    resetForm(){
        this.$refs.loginFormRef.resetFields();
    },
    login(){
          this.$refs.loginFormRef.validate(async (validate)=>{
            if(!validate){
                return;
            }
            const {data:res} = await this.$http.post("login",this.loginForm)
            if(res.meta.status !== 200){ //登录失败
                return this.$message.error("登录失败");
            }
            //登录成功
            this.$message.success("登录成功");
            //将token保存到客户端中，sessionStorage
            window.sessionStorage.setItem("token",res.data.token);
            this.$router.push('/home');

          })      
    }
}
   
}
</script>

<style lang="less" scoped>
  .login_container{
      background-color: #2b4b6b;
      height: 100%;
  }
  .login_box{
      width: 450px;
      height: 300px;
      background-color: #fff;
      border-radius: 10px;
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%,-50%);
      .avatar_box {
        height: 130px;
        width: 130px;
        border: 1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform: translate(-50%, -40%);
        background-color: #fff;
        img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
  }
  }
  .login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
